"I just kept wondering what it was, and I kept looking around until I looked at the floor, and I saw three rats, and I ran," Ornelas told the NBC affiliate.

Chipotle said in a statement that "a few mice" did get inside the restaurant "due to a small structural gap."

"Management immediately removed them and the gap has been repaired," Chipotle's Quinn Kelsey said. "We've been in touch with our guests to offer our sincere apologies. This is an extremely isolated and rare incident but of course it's not anything we'd ever want our guests to encounter."

Kelsey said that Chipotle conducts monthly inspections to "best prevent these types of issues." She said that the Dallas eatery has received high ratings from health inspectors.

Ornelas told NBC that she was pleased with how the employees handled the issue, but was not planning to return.